8月中国地级及以上城市平均空气质量优良天数比例升至96%

Group 1 - The average proportion of days with good air quality in China's cities at or above the prefecture level reached 96.0% in August, an increase of 5.9 percentage points year-on-year [1] - The average concentration of PM2.5 in 339 cities was 13.9 micrograms per cubic meter, a decrease of 16.8% year-on-year, while PM10 concentration averaged 27 micrograms per cubic meter, down 12.9% [1] - In the Beijing-Tianjin-Hebei region and surrounding areas, the average PM2.5 concentration was 17.7 micrograms per cubic meter, a decline of 9.2% year-on-year, with an average good air quality days proportion of 89.6%, up 10.9 percentage points [1] Group 2 - The best air quality cities among 168 key cities in August included Haikou, Huangshan, Lishui, Zhuhai, Lhasa, Liu'an, Guiyang, Fuzhou, Xiamen, and Kunming [1] - The cities with the poorest air quality were Taiyuan, Yangquan, Linfen, Lanzhou, Lüliang, Jiaozuo, Tangshan, Zibo, Jinzhong, and Baotou [1] Group 3 - The Minister of Ecology and Environment emphasized the importance of identifying key points for air pollution prevention in the 2025 air pollution prevention work meeting, aiming to achieve the air quality improvement targets set for the 14th Five-Year Plan [2]